mine don't leak, only time i have seen them leak was either the tubing was not pushed in all the way into the fittings which i would suggest you double check that,they should go in about 1/4-3/16" inch into the push lock fittings,you could be sucking in air,
as for the master leaking i would double check it make sure the seals are seated properly under plunger , you have to move the boot off to see the plunger set up,
also keep in mind while you where bleeding the system the master has to be bled also, and if you did that,you could be getting residual from the spilling of the oils